SSRF in Langchain
CVE-2025-2828
A Server-Side Request Forgery (SSRF) vulnerability exists in the RequestsToolkit component of the langchain-community package (specifically, langchain_community.agent_toolkits.openapi.toolkit.RequestsToolkit) in langchain-ai/langchain version 0.0.27. This vulnerability occurs because the toolkit does not enforce restrictions on requests to remote internet addresses, allowing it to also access local addresses. As a result, an attacker could exploit this flaw to perform port scans, access local services, retrieve instance metadata from cloud environments (e.g., Azure, AWS), and interact with servers on the local network. This issue has been fixed in version 0.0.28.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.210 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.172 · newest: 0.210 · change: +0.038
Affected products
- Langchain
- Langchain-Ai Langchain-Ai/langchain — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.com/bounties/8f771040-7f34-420a-b96b-5b93d4a99afc (Exploit, Third Party Advisory)
- github.com/langchain-ai/langchain/commit/e188d4ecb085d4561a0be3c583d26aa9c2c328… (Patch)
Frequently asked questions
- What is CVE-2025-2828?
- CVE-2025-2828 is a critical-severity vulnerability in Langchain, classified under Server-Side Request Forgery (SSRF). CVSS score: 10.0/10. Published 2025-06-23.
- How severe is CVE-2025-2828?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2025-2828 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.